888LM motion sensors extremely unreliable

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  • Updated 6 months ago
NOTE: This is a repost of a previously posted question. Previously, the MyQ Community Manager told me LiftMaster support would get in touch with me. That didn't happen, and my original post seems to have disappeared. So I'm posting again.

I have three 888LM control panels that came in the box with my three LiftMaster 8500 jackshaft garage door openers. Two of the openers were purchased in 2015 and the other one was purchased in 2017. The motion sensors on all three panels only occasionally detect motion and turn on their associated overhead lights. Most of the time I walk out into a dark garage.

The door openers operate 100% correctly via the panel, and the associated overhead lights always turn on when the doors are operated. But all three of the motion sensors only occasionally work.

Is this normal? If not, what troubleshooting steps could I perform?

Mike
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mike

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  • frustrated

Posted 1 year ago

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MyQ Community Manager

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Mike, I'm going to have a customer support agent contact you directly on the email associated with this account. Keep your eye out for an email. Thanks, Lauren
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mike

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Hi Lauren,

I received exactly one email from customer support. They didn't ask any questions. They simply advised that I need to separate the MyQ Control Panels from one another by at least 12" horizontally and 28" vertically, and also consider turning off the motion sensors (which makes no sense at all considering that my issue is that the motion sensors aren't working).

Several email replies from me requesting clarification went unanswered.

It's great that Chamberlain is monitoring these forums. But if the customer support experience I received is typical, you might as well not bother.

Mike

PS - I'm still having the problem with the motion sensors not working consistently.
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Kevin

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Mike,

I'm having the EXACT same problem with my 888LM controllers and 8500 jackshaft openers.   Lights work exactly as supposed to when opening and closing, but only occasionally do the motion sensors work.    I've walked out in the dark many times only to have the motion sensor "see" me finally when I made it back to the door to go in the house.

Would be very interested in an alternative controller that might work better or a fix for these controllers.   Other than this problem, the system has been very reliable for us.
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mike

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So, my extreme annoyance with the total lack of support from Liftmaster/Chamberlain on this matter notwithstanding, here’s what I did. I turned off the motion sensing on the left and right opener and left it on for the center opener. It works flawlessly now. When I walk into the garage, the center light (and only the center light) turns on. I’m willing to live with that.
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Kevin

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thanks. I’ll try that tonight Mike!